<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title>字体作业</title>
		<style type="text/css">
			.A1{
				color: rgb(255, 255, 0);
			}
			#A2{
				font-weight: 1000;
			}
			.A3{
				font-style: italic;
			}
		</style>
	</head>
	<body>
		    这是文字<a1 class="A1">黄色部分</a1><a2 id="A2">加粗部分</a2><a3 class="A3">斜体部分</a3>
	</body>
</html>
